Results 11 to 20 of about 14,452,680 (221)

Astronomical Seeing and Meteorological Parameters at Maidanak Observatory

open access: yesAtmosphere, 2023
In this article, we present the results of astronomical seeing measurements conducted at the Maidanak observatory and the influence of meteorological parameters on astronomical seeing.
Yusufjon Tillayev   +3 more
doaj   +1 more source

A hybrid of light-field and light-sheet imaging to study myocardial function and intracardiac blood flow during zebrafish development.

open access: yesPLoS Computational Biology, 2021
Biomechanical forces intimately contribute to cardiac morphogenesis. However, volumetric imaging to investigate the cardiac mechanics with high temporal and spatial resolution remains an imaging challenge. We hereby integrated light-field microscopy (LFM)
Zhaoqiang Wang   +5 more
doaj   +1 more source

Investigation of the Global Spatio-Temporal Characteristics of Astronomical Seeing

open access: yesRemote Sensing, 2023
Astronomical seeing is important for monitoring the atmospheric environment, observation scheduling and management, and selecting astronomical sites.
Cuicui Bi   +5 more
doaj   +1 more source

Motion Scalability for Video Coding with Flexible Spatio-Temporal Decompositions [PDF]

open access: yes, 2007
PhDThe research presented in this thesis aims to extend the scalability range of the wavelet-based video coding systems in order to achieve fully scalable coding with a wide range of available decoding points.
Mrak, Marta
core   +4 more sources

Two independent mechanisms for motion-in-depth perception : evidence from individual differences [PDF]

open access: yes, 2010
Our forward-facing eyes allow us the advantage of binocular visual information: using the tiny differences between right and left eye views to learn about depth and location in three dimensions.
Harold T Nefs   +11 more
core   +2 more sources

First day-time seeing observations at the Observatory of University of Zanjan in Iran [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2018
Recognition of the appropriate locations for ground-based observations of the Sun with high angular resolution depends on the factors such as seeing, meteorological and astronomical parameters.
Pardis Ahmadi   +3 more
doaj   +1 more source

Opponent processes in human motion perception: shear and compression sensitivity, induced motion and motion capture [PDF]

open access: yes, 1994
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Sensitivity to differential motion components, shearing and compressive (opposed) motion, was examined. The hypothesis that the visual system contains local
Roberts, Karl Anton
core   +7 more sources

Progressive mesh-based motion estimation using partial refinement [PDF]

open access: yes, 2006
A technique for performing progressive mesh-based motion estimation in a layered fashion is presented. Motion compensation based on image warping provides a block prediction free of block artifacts.
Park, Heechan   +5 more
core   +1 more source

Image interpolation with edge-preserving differential motion refinement [PDF]

open access: yes, 2009
Motion estimation (ME) methods based on differential techniques provide useful information for video analysis, and moreover it is relatively easy to embed into them regularity constraints en- forcing for example, contour preservation.
Pesquet-Popescu, Béatrice   +7 more
core   +3 more sources

Observing Geohazards from Space

open access: yesGeosciences, 2018
With a wide spectrum of imaging capabilities—from optical to radar sensors, low to very high resolution, continental to local scale, single-image to multi-temporal approaches, yearly to sub-daily acquisition repeat cycles—Earth Observation (EO) offers ...
Francesca Cigna
doaj   +1 more source

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